Spatial chirp and angular spatial chirp measurement with the Mesa Photonics’ Imaging Spectrometer. TCP/IP network interface allows for remote monitoring of beam parameters. Software included.
The Imaging Spectrometer provides a simple way to measure the spatial chirp and angular spatial chirp (using two).
This information combined with temporal pulse measurement provides the full pulse front tilt and spatial chirp of your laser system. Because of the network connection, the device(s) can be placed anywhere in your ultrafast laser system for remote monitoring. Using two with a known separation distance provides measurement of the angular spatial chirp as well. Combine with a FROGscan to provide the full measurement of spatial chirp and pulse front tilt.
The problem with systems that use single shot autocorrelation for the measurement of pulse front tilt is absolute measurements. Initial alignment of the SS autocorrelator can hide pulse front tilt already present in your laser beam. Consequently, these types of measurements are really just relative measurements. Absolute measurements are nearly impossible. However, direct spectrographic spatial chirp and angular spatial chirp measurements cannot be fooled. Because the system is linear and does not use nonlinear optics, only a miniscule amount of power is needed for the measurement provided true in situ monitoring of beam parameters.
Network connections allow for placement at the locations of interest—not where you have room to make the measurement. The software integrates with pulse measurement to provide the full spatial chirp and pulse front tilt parameters.